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// rb_ia64_flushrs and rb_ia64_bsp is written in IA64 assembly language
// because Intel Compiler for IA64 doesn't support inline assembly.
//
// This file is based on following C program compiled by gcc.
//
//   void rb_ia64_flushrs(void) { __builtin_ia64_flushrs(); }
//   void *rb_ia64_bsp(void) { return __builtin_ia64_bsp(); }
// 
// Note that rb_ia64_flushrs and rb_ia64_bsp works in its own stack frame.
// It's because BSP is updated by br.call/brl.call (not alloc instruction).
// So rb_ia64_flushrs flushes stack frames including caller's one.
// rb_ia64_bsp returns the address next to caller's register stack frame. 
//
// See also
// Intel Itanium Architecture Software Developer's Manual
// Volume 2: System Architecture.
//
  .file  "ia64.c"
  .text
  .align 16
  .global rb_ia64_flushrs#
  .proc rb_ia64_flushrs#
rb_ia64_flushrs:
  .prologue
  .body
  flushrs
  ;;
  nop.i 0
  br.ret.sptk.many b0
  .endp rb_ia64_flushrs#
  .align 16
  .global rb_ia64_bsp#
  .proc rb_ia64_bsp#
rb_ia64_bsp:
  .prologue
  .body
  nop.m 0
  ;;
  mov r8 = ar.bsp
  br.ret.sptk.many b0
  .endp rb_ia64_bsp#
  .ident  "GCC: (GNU) 3.3.5 (Debian 1:3.3.5-13)"